pc: consolidate __const_udelay for linux drivers

Use common implementation used by wifi and (not merged) audio driver.
Avoid usage of lib/delay.c since lpj and loop_for_jiffies are not calibrated
for the ported drivers as done on native Linux during boot and leads to wrong
delays for usb and intel_fb.

Issue #4540

repos/dde_linux/src/lib/lx_emul/spec/x86/start.c

@@ -26,7 +26,6 @@ unsigned long long sched_clock(void)
 void time_init(void)
 {
 	lx_emul_time_init(); /* replaces timer_probe() */
-	lpj_fine = 1000000 / HZ;
 }